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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-41643

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 16.3%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-41643
  • Osrg » Gobgp » Version: 1.0
    cpe:2.3:a:osrg:gobgp:1.0
  • Osrg » Gobgp » Version: 1.1
    cpe:2.3:a:osrg:gobgp:1.1
  • Osrg » Gobgp » Version: 1.10
    cpe:2.3:a:osrg:gobgp:1.10
  • Osrg » Gobgp » Version: 1.11
    cpe:2.3:a:osrg:gobgp:1.11
  • Osrg » Gobgp » Version: 1.12
    cpe:2.3:a:osrg:gobgp:1.12
  • Osrg » Gobgp » Version: 1.13
    cpe:2.3:a:osrg:gobgp:1.13
  • Osrg » Gobgp » Version: 1.14
    cpe:2.3:a:osrg:gobgp:1.14
  • Osrg » Gobgp » Version: 1.15
    cpe:2.3:a:osrg:gobgp:1.15
  • Osrg » Gobgp » Version: 1.16
    cpe:2.3:a:osrg:gobgp:1.16
  • Osrg » Gobgp » Version: 1.17
    cpe:2.3:a:osrg:gobgp:1.17
  • Osrg » Gobgp » Version: 1.18
    cpe:2.3:a:osrg:gobgp:1.18
  • Osrg » Gobgp » Version: 1.19
    cpe:2.3:a:osrg:gobgp:1.19
  • Osrg » Gobgp » Version: 1.2
    cpe:2.3:a:osrg:gobgp:1.2
  • Osrg » Gobgp » Version: 1.20
    cpe:2.3:a:osrg:gobgp:1.20
  • Osrg » Gobgp » Version: 1.21
    cpe:2.3:a:osrg:gobgp:1.21
  • Osrg » Gobgp » Version: 1.22
    cpe:2.3:a:osrg:gobgp:1.22
  • Osrg » Gobgp » Version: 1.23
    cpe:2.3:a:osrg:gobgp:1.23
  • Osrg » Gobgp » Version: 1.24
    cpe:2.3:a:osrg:gobgp:1.24
  • Osrg » Gobgp » Version: 1.25
    cpe:2.3:a:osrg:gobgp:1.25
  • Osrg » Gobgp » Version: 1.26
    cpe:2.3:a:osrg:gobgp:1.26
  • Osrg » Gobgp » Version: 1.27
    cpe:2.3:a:osrg:gobgp:1.27
  • Osrg » Gobgp » Version: 1.28
    cpe:2.3:a:osrg:gobgp:1.28
  • Osrg » Gobgp » Version: 1.29
    cpe:2.3:a:osrg:gobgp:1.29
  • Osrg » Gobgp » Version: 1.3
    cpe:2.3:a:osrg:gobgp:1.3
  • Osrg » Gobgp » Version: 1.30
    cpe:2.3:a:osrg:gobgp:1.30
  • Osrg » Gobgp » Version: 1.31
    cpe:2.3:a:osrg:gobgp:1.31
  • Osrg » Gobgp » Version: 1.32
    cpe:2.3:a:osrg:gobgp:1.32
  • Osrg » Gobgp » Version: 1.33
    cpe:2.3:a:osrg:gobgp:1.33
  • Osrg » Gobgp » Version: 1.4
    cpe:2.3:a:osrg:gobgp:1.4
  • Osrg » Gobgp » Version: 1.5
    cpe:2.3:a:osrg:gobgp:1.5
  • Osrg » Gobgp » Version: 1.6
    cpe:2.3:a:osrg:gobgp:1.6
  • Osrg » Gobgp » Version: 1.7
    cpe:2.3:a:osrg:gobgp:1.7
  • Osrg » Gobgp » Version: 1.8
    cpe:2.3:a:osrg:gobgp:1.8
  • Osrg » Gobgp » Version: 1.9
    cpe:2.3:a:osrg:gobgp:1.9
  • Osrg » Gobgp » Version: 2.0.0
    cpe:2.3:a:osrg:gobgp:2.0.0
  • Osrg » Gobgp » Version: 2.1.0
    cpe:2.3:a:osrg:gobgp:2.1.0
  • Osrg » Gobgp » Version: 2.10.0
    cpe:2.3:a:osrg:gobgp:2.10.0
  • Osrg » Gobgp » Version: 2.11.0
    cpe:2.3:a:osrg:gobgp:2.11.0
  • Osrg » Gobgp » Version: 2.12.0
    cpe:2.3:a:osrg:gobgp:2.12.0
  • Osrg » Gobgp » Version: 2.13.0
    cpe:2.3:a:osrg:gobgp:2.13.0
  • Osrg » Gobgp » Version: 2.14.0
    cpe:2.3:a:osrg:gobgp:2.14.0
  • Osrg » Gobgp » Version: 2.15.0
    cpe:2.3:a:osrg:gobgp:2.15.0
  • Osrg » Gobgp » Version: 2.16.0
    cpe:2.3:a:osrg:gobgp:2.16.0
  • Osrg » Gobgp » Version: 2.17.0
    cpe:2.3:a:osrg:gobgp:2.17.0
  • Osrg » Gobgp » Version: 2.18.0
    cpe:2.3:a:osrg:gobgp:2.18.0
  • Osrg » Gobgp » Version: 2.19.0
    cpe:2.3:a:osrg:gobgp:2.19.0
  • Osrg » Gobgp » Version: 2.2.0
    cpe:2.3:a:osrg:gobgp:2.2.0
  • Osrg » Gobgp » Version: 2.20.0
    cpe:2.3:a:osrg:gobgp:2.20.0
  • Osrg » Gobgp » Version: 2.21.0
    cpe:2.3:a:osrg:gobgp:2.21.0
  • Osrg » Gobgp » Version: 2.22.0
    cpe:2.3:a:osrg:gobgp:2.22.0
  • Osrg » Gobgp » Version: 2.23.0
    cpe:2.3:a:osrg:gobgp:2.23.0
  • Osrg » Gobgp » Version: 2.24.0
    cpe:2.3:a:osrg:gobgp:2.24.0
  • Osrg » Gobgp » Version: 2.25.0
    cpe:2.3:a:osrg:gobgp:2.25.0
  • Osrg » Gobgp » Version: 2.26.0
    cpe:2.3:a:osrg:gobgp:2.26.0
  • Osrg » Gobgp » Version: 2.27.0
    cpe:2.3:a:osrg:gobgp:2.27.0
  • Osrg » Gobgp » Version: 2.28.0
    cpe:2.3:a:osrg:gobgp:2.28.0
  • Osrg » Gobgp » Version: 2.29.0
    cpe:2.3:a:osrg:gobgp:2.29.0
  • Osrg » Gobgp » Version: 2.3.0
    cpe:2.3:a:osrg:gobgp:2.3.0
  • Osrg » Gobgp » Version: 2.30.0
    cpe:2.3:a:osrg:gobgp:2.30.0
  • Osrg » Gobgp » Version: 2.31.0
    cpe:2.3:a:osrg:gobgp:2.31.0
  • Osrg » Gobgp » Version: 2.32.0
    cpe:2.3:a:osrg:gobgp:2.32.0
  • Osrg » Gobgp » Version: 2.33.0
    cpe:2.3:a:osrg:gobgp:2.33.0
  • Osrg » Gobgp » Version: 2.34.0
    cpe:2.3:a:osrg:gobgp:2.34.0
  • Osrg » Gobgp » Version: 2.4.0
    cpe:2.3:a:osrg:gobgp:2.4.0
  • Osrg » Gobgp » Version: 2.5.0
    cpe:2.3:a:osrg:gobgp:2.5.0
  • Osrg » Gobgp » Version: 2.6.0
    cpe:2.3:a:osrg:gobgp:2.6.0
  • Osrg » Gobgp » Version: 2.7.0
    cpe:2.3:a:osrg:gobgp:2.7.0
  • Osrg » Gobgp » Version: 2.8.0
    cpe:2.3:a:osrg:gobgp:2.8.0
  • Osrg » Gobgp » Version: 2.9.0
    cpe:2.3:a:osrg:gobgp:2.9.0
  • Osrg » Gobgp » Version: 3.0.0
    cpe:2.3:a:osrg:gobgp:3.0.0
  • Osrg » Gobgp » Version: 3.1.0
    cpe:2.3:a:osrg:gobgp:3.1.0
  • Osrg » Gobgp » Version: 3.10.0
    cpe:2.3:a:osrg:gobgp:3.10.0
  • Osrg » Gobgp » Version: 3.11.0
    cpe:2.3:a:osrg:gobgp:3.11.0
  • Osrg » Gobgp » Version: 3.12.0
    cpe:2.3:a:osrg:gobgp:3.12.0
  • Osrg » Gobgp » Version: 3.13.0
    cpe:2.3:a:osrg:gobgp:3.13.0
  • Osrg » Gobgp » Version: 3.14.0
    cpe:2.3:a:osrg:gobgp:3.14.0
  • Osrg » Gobgp » Version: 3.15.0
    cpe:2.3:a:osrg:gobgp:3.15.0
  • Osrg » Gobgp » Version: 3.16.0
    cpe:2.3:a:osrg:gobgp:3.16.0
  • Osrg » Gobgp » Version: 3.17.0
    cpe:2.3:a:osrg:gobgp:3.17.0
  • Osrg » Gobgp » Version: 3.18.0
    cpe:2.3:a:osrg:gobgp:3.18.0
  • Osrg » Gobgp » Version: 3.19.0
    cpe:2.3:a:osrg:gobgp:3.19.0
  • Osrg » Gobgp » Version: 3.2.0
    cpe:2.3:a:osrg:gobgp:3.2.0
  • Osrg » Gobgp » Version: 3.20.0
    cpe:2.3:a:osrg:gobgp:3.20.0
  • Osrg » Gobgp » Version: 3.21.0
    cpe:2.3:a:osrg:gobgp:3.21.0
  • Osrg » Gobgp » Version: 3.22.0
    cpe:2.3:a:osrg:gobgp:3.22.0
  • Osrg » Gobgp » Version: 3.23.0
    cpe:2.3:a:osrg:gobgp:3.23.0
  • Osrg » Gobgp » Version: 3.24.0
    cpe:2.3:a:osrg:gobgp:3.24.0
  • Osrg » Gobgp » Version: 3.25.0
    cpe:2.3:a:osrg:gobgp:3.25.0
  • Osrg » Gobgp » Version: 3.26.0
    cpe:2.3:a:osrg:gobgp:3.26.0
  • Osrg » Gobgp » Version: 3.27.0
    cpe:2.3:a:osrg:gobgp:3.27.0
  • Osrg » Gobgp » Version: 3.28.0
    cpe:2.3:a:osrg:gobgp:3.28.0
  • Osrg » Gobgp » Version: 3.29.0
    cpe:2.3:a:osrg:gobgp:3.29.0
  • Osrg » Gobgp » Version: 3.3.0
    cpe:2.3:a:osrg:gobgp:3.3.0
  • Osrg » Gobgp » Version: 3.30.0
    cpe:2.3:a:osrg:gobgp:3.30.0
  • Osrg » Gobgp » Version: 3.31.0
    cpe:2.3:a:osrg:gobgp:3.31.0
  • Osrg » Gobgp » Version: 3.32.0
    cpe:2.3:a:osrg:gobgp:3.32.0
  • Osrg » Gobgp » Version: 3.33.0
    cpe:2.3:a:osrg:gobgp:3.33.0
  • Osrg » Gobgp » Version: 3.34.0
    cpe:2.3:a:osrg:gobgp:3.34.0
  • Osrg » Gobgp » Version: 3.35.0
    cpe:2.3:a:osrg:gobgp:3.35.0
  • Osrg » Gobgp » Version: 3.36.0
    cpe:2.3:a:osrg:gobgp:3.36.0
  • Osrg » Gobgp » Version: 3.4.0
    cpe:2.3:a:osrg:gobgp:3.4.0
  • Osrg » Gobgp » Version: 3.5.0
    cpe:2.3:a:osrg:gobgp:3.5.0
  • Osrg » Gobgp » Version: 3.6.0
    cpe:2.3:a:osrg:gobgp:3.6.0
  • Osrg » Gobgp » Version: 3.7.0
    cpe:2.3:a:osrg:gobgp:3.7.0
  • Osrg » Gobgp » Version: 3.8.0
    cpe:2.3:a:osrg:gobgp:3.8.0
  • Osrg » Gobgp » Version: 3.9.0
    cpe:2.3:a:osrg:gobgp:3.9.0


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